Books – strips – and leaves – Book or leaf holder
Patent
1987-10-13
1989-10-24
Yost, Frank T.
Books, strips, and leaves
Book or leaf holder
281 41, 190 1, B42D 300, B42D 900, A45C 900
Patent
active
048757080
ABSTRACT:
A book shade having flaps that can be inserted into a book to hold the shade, and positioning means to position the shade at an acute angle with respect to the pages of the book. Resilient means help hold the book pages in an open position. In another embodiment, a bottom cover contains an open book, while a top cover is held in a selected position with respect to the book so as to shade the book. Springs on the bottom cover urge the pages to remain open at selected pages. The top cover can be placed substantially parallel to the bottom cover in a closed position when the book is not in use.
REFERENCES:
patent: 1841741 (1932-01-01), Labadie
patent: 2489553 (1949-11-01), Wofford
patent: 2822847 (1958-02-01), Cesaroni, Jr.
patent: 2984205 (1961-05-01), Richards
patent: 3298477 (1967-01-01), Martinez
patent: 3416817 (1968-12-01), Gia-Quinto
patent: 3724617 (1973-04-01), Lawler
patent: 3833098 (1974-09-01), Alderman
patent: 4180112 (1979-12-01), Bovet
patent: 4241745 (1980-12-01), Knox
Sremba Gerald F.
Sremba Patricia M.
Sullivan James P.
Heyrana Paul M.
Sremba Gerald F.
Sremba Patricia M.
Yost Frank T.
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